Hello Alan:
NIR will work quite well and give other parameters in addition to fat. But
it requires expensive instrumentation. You didn't mention how big the
fishing vessel is.
For NIR it is only necessary to grind the sample, insert it into a sample
cup and insert the cup into the instrument. The read out is instantaneous
(almost). It also requires an initial calibration which is done by the
manufacturer.
Hope this helps.
Tony Bimbo
----- Original Message -----
From: "Snow, Alan" <SnowA@prose.dpi.qld.gov.au>
To: "Seafood User Group (E-mail)" <seafood@ucdavis.edu>
Sent: Thursday, January 11, 2001 9:04 PM
Subject: Rapid test method for measuring oil content
| G'day User Group members
|
| I have received an inquiry from a company who is after a procedure for a
| simple test that could be used in the field to measure the fat or oil
| content of fish. He wants to be able to use the procedure on board
fishing
| boats as a quality assessment tool.
|
| I am aware of the Fish fatmeter which can be used for such purposes. Other
| analytical procedures that I am generally aware of would require either
| digestion or extraction of the oil which would result in solvents or acids
| on a boat which would not be a really good idea.
|
| I have completed a search on a couple of databases looking for rapid test
| methods but have come up with a blank. If there is a rapid test method, no
| one has documented it.
|
| Is anyone aware of a relatively simple method that could be used to
estimate
| the oil content on fish at sea? Any feedback would be greatly appreciated.
|
|
| Alan J Snow
| Senior Information Officer
| Seafood Services Australia - Technical Information & Advice
| CENTRE FOR FOOD TECHNOLOGY
| Department of Primary Industries
| 19 Hercules Street Hamilton Q 40071
| Australia
| Telephone 617 3406 8645
| Facsimile 617 3406 8677
| Mobile 0418 199516
| Snowa@dpi.qld.gov.au
| http://www.dpi.qld.gov.au/cft/ssaust/
|
|
|
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This archive was generated by hypermail 2b29 : Fri Jan 12 2001 - 06:58:33 PST